Metal-working machine



Dec. 16, 1924. 1,519,680

F. GREINER METAL wonxxua MACHINE Filed Jan- 1924 4 Sheets-Sheet 1 1 i 5 w: I i

Dec. 1924. 1,519,680

F.GRHNER METAL WORKING MACHINE Fild Jan. 1924 w 4 Sheets-Sheet s Dec. 16, 1924.

F. GREINER METAL WORKING MACHINE Filed Jan. 1924 4 sheets-Sheet 4 wswraz e 64.

Patented Dec. 16, 1924.

UNITED STATES FRANK GREINER, OF WEST HARTFORD, CONNECTICUT.

METAL-WORKING MACHINE.

Application filed January 11, 1924. Serial No. 685,548.

To all whom it may concern:

Be it known that I, FRANK GREINER, a citizen of the United States, residing at Vest Hartford, in the county of Hartford and State of Connecticut, have invented a new and useful Improvement in MetallVorking Machines, of which the following is a specification.

This invention relates to those machines which are adapted to be used for drilling, boring, tapping, reaming, threading, turning, facing, forming and cutting off metal stock, of the type in which the several tools are automatically at the proper times brought into operative position and fed toward the stock that may or may not be rotated according to the nature of the work to be accomplished.

The object of the present invention is to provide a simple and very compact yet exceedingly rigid construction for machines of this class, so designed that the floor space occupied will be reduced to a minimum and very accurate work of various character may be rapidly performed.

In attaining this object a tool head, provided in multiple positions with tool holders for receiving tools of different form, is rotatably mounted on a vertical column that is supported at each end by, and has a vertical reciprocation in the frame of the machine, the tool head being automatically rotatably indexed to present the different tools successively at the desired time into line with the work, and the column being reciprocated vertically and carrying the tool head to feed the tools toward and from the work. The design is such that the column is always guided and supported each side of the tool head, and mechanism is arranged for rotating such tools as are required to be rotated when they are indexed into line with the work. The work is held by a chuck that may be rotated, and adjacent to the chuck and capable of oscillation toward and from the work are heads adapted to carry forming or other tools that may be fed toward the work, if desired to use such tools.

In the accompanying drawings Fig. 1 shows a front elevation of a machine having the features of this invention. Fig. 2 shows a side elevation, with parts out in section, of the same. Fig. 3 shows a horizontal section on the plane indicated by the dotted line 33 on Fig. 2. Fig. 4: shows a horizontal section on the plane indicated by the dotted line H on Fig. 2. Fig. 5 shows a horizontal section on the plane indicated by the dotted line 55 on Fig. 2.

The frame has a base portion 1 of suitable shape and size to support the mechanisms, and an upright portion 2 which, in the machine illustrated, is curved in horizontal section. Mounted in the frame and movable up and down is a vertical slide or column 3. The lower portion & of this column is desirably rectangular in cross section and is supported and guided in a correspondingly shaped opening 5 in the base portion of the frame, while the upper portion 6 of the column is preferably circular in cross section and is supported and guided in a correspondingly shaped opening 7 at the top of the upright portion of the frame. Any desired means may be provided for raising and lowering this column, preferably a cam 8 engaging with a roll 9 attached to the lower end of the column, the inclination and shapes of the camming surfaces being such as to effect the desired up and down feeding movement of the column. The cam shaft 10 is shown as provided with a worm wheel 11 engaged by a worm 12 on a shaft driven through gears 18 from a drive shaft 14.

Rotatably mounted on and movable up and down with the column, between the guiding bearings for the column, is a tool head 15. The tool head, which is rotatable on but is carried up and down by the column, is provided with a plurality of tool holders 16 carrying the desired tools 17. The surface of the tool head may have vertical slots 18 which form ways in which the tool holders may be adjustably secured. A gear 19 rotatably mounted on the column is connected with and adapted to rotate the tool head. Meshing with this gear is a gear 20 attached to the lower end of a rotatable shaft 21 that has its upper end supported by the cross head 22 which is fastened to and moves up and down with the column. The lower end of the shaft is supported by a cross head 23 that also moves up and down with the column. This shaft is free to rotate in and also reciprocate through an opening 24 in the top of the frame. On the shaft and adapted to rotate it, yet permit it to slide through as the column goes up and down, is a bevel gear 25 that is engaged by a bevel gear 26 on a shaft which is designed to be rotated by tached to this plate.

any suitable indexing mechanism. Through this mechanism the tool head may be indexed at the proper times, usually during the upward movements of the column and tool head, to carry the several tools in succession into line with the piece of work to be operated on 'during the downward movements of the column and tool head.

In order to provide means for rotating a tool the tool holders can carry a gear 27 arranged to mesh with a gear 28 when the tool holder with the gear comes into, line with the Work. The gear 28 is carried by the column which reciprocates vertically but does not rotate while the gear 27 is carried by the tool holder head which isv rotatable on the column and moves up and down therewith so that these gears only clash together or come into mesh when the head is rotated to bring the tool holder with the gear 27 into line with the work. The ratio of these gears may be changed to alter the speed of the tool according to the work. The gear 28 is attached to the lower end of a vertical shaft 29 supported by the cross heads 22 and 23 that travel up and down with the column. Attached to the upper end of the shaft 29 is a gear 30 meshing with which is a gear 31 carried by the cross head at the top of the column. The gear 31 is rotated by a shaft 32 upon which the gear is free to slide up and down as the column reciprooates.

The shaft 32 extends axially through the column and at its lower end is supported by a bearing 33. on the bottom of the base. Near the lower end this shaft has a worm Wheel 34; engaged by a worm 3.5 on a shaft 36 that is driven from the drive shaft, through spiral gears 3.7. these means the tools may be rotated when brought into. line with the work, and by changing the relative sizes of the clash gears 27 and 28 the speed of rotation of the tools may be varied.

The front of the opening in the base for the lower end of the column is closedby a removable plate 38, and the work table 39 may be formed as a part of or may be at- On this table is a chuck 40.. the aws 41 of which are shown as holding a piece of work 42. The chuck may be fastened to the upper end ofa shaft 43 rotatably mounted in the table and provided with a gear 44 by means. of which it may be rotated through any suit-able mechanism.

Vertical shafts 45 are shown as mounted in the table. adjacent to and parallel with the chuck shaft. At the upper ends of these shafts are. rocker arms 46. formed to receive.

and adjustably retain tool holders 47 designed to,- receive forming or cutting offment with cams. 50 on a shaft 51 provided with a worm wheel 52'by means of which:

By the employment of the shaft and cams may be rotated. These tool holders are capable of adjustment up and down to enable the tools which they carry to cut at the desired height, and the cams may beshaped to feed the tools toward the Work at the required times with the most efficient movement to effect the particular cuts they are to make.

With a machine having the features described, practically all operations, within the working limits of the mechanisms, necessary to, reduce a piece. of work to any .de-. sired shape may be performed. Various toolsv adapted to perform the required cuts: ma be mounted on therotatable tool head ant indexed into Working position at the necessary intervals. These toolsmaybe ro.-., tated or may be merely fed longitudinally to perform their work. The tool holders. for

these tools do not slideupon the tool head, and the tool head does not slide upon the column, therefore the head may be made rel-. atively short and accurately fitted on the column. The column being relatively large in cross section and the guiding bearings for it being widely separated and on each side of the tool head, it rigidly supports the head and there is but little wear, consequently the accuracy of the work performed will not be impaired although the machine is subjected to heavy duty for long periods. As: the head issupported on both sides and there is nomore overhangto. the tools at one elevation than at another, the strains of use are resisted and sustained exactly the same in all positions of the head, Which feature enables. very accurate work to. be performed at relatively high speed. The oscillatory tools may or may not be used.- Whenused these tools'may be made to Work very ac-. curately for long periods as the wearingparts are in; the natureof simple journals: and journal bearings.

combinations of speeds that may beobtained by reason of rotating the spindle at one rate and the work at another,enable opera.- tions to be accurately performedon inside and outside diameters which vary considerably in length and without making neces-. sary the employment of pilots'to ensure ac-., curacy. Owing to the vertical arrangement and movement of the; tools and their supporting parts, this machine, which. is capable ofperforming many different cuts very accurately and rapidly, occupies but asmall floor space compared with the room required for the horizontal; machines'now: in use and capable of performingthevsame work. This isv a. valuable characteristic, especially where. it is desired to. increase the capacity of: a

plant without increasing the floorarea or enlarging. the building:

The: invention claimed is 1;. A metal working machine comprising.-

Doing away w th long overhang, and utilizing the possible:

a frame, a work holder, a vertically movable column supported and guided near each end by bearings in the frame, means for re ciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, and means for rotating the tool head.

2. A metal working machine comprising a frame, a work holder, a vertically movable non-rotatable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, and means for rotating the tool head.

3. A metal working machine comprising a frame, a work holder, a vertically movable non-rotatable column supported and guided near each end by hearings in the frame, a cam for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, and means for rotating the tool head.

4. A metal working machine comprising a frame, a. work holder, a vertically movable non-rotatable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder between the supporting and guiding bearings for the column, and means for rotating the tool head.

5. A metal working machine comprising a frame, a work holder, a vertically movable non-rotatable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, and means movable up and down with the column and tool head for rotating the tool head.

6. A metal working machine comprising a frame, a work holder, a vertically movable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, means for rotating the tool head, tools carried by the head, and means adapted to r0- tate the tools when in working position.

7. A metal working machine comprising a frame, a work holder, a vertically movable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, means for rotating the tool head, tools carried by the head, and means movable up and down with the column and tool head, adapted to rotate the tools when in working position.

8. A metal working machine comprising a frame, a work holder, a vertically movable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, means for rotating the tool head, tools carried by the tool head, and clash gears adapted to be engaged for rotating the tools as the tools are indexed into working position.

9. A metal Working machine comprising a frame, a work holder, a vertically movable column supported and guided near each end by hearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, gears movable up and down with the column and tool head for rotating the tool head, and gears movable up and down with the column and tool head for rotating the tools.

10. A metal working machine comprising a. frame, a work holder, a vertically movable column supported and guided near each end by bearings in the frame, means for reciprocatin'g the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, means for rotating the tool head, and tool holders adj ustably mounted on the tool head.

11. A metal working machine comprising a frame, a work holder, a vertically movable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column adjacent to the work holder, means for rotating the tool head, and tool holders mounted in multiple positions on the tool head.

12. A metal working machine comprising a frame, a work chuck mounted on the frame, a vertically movable non-rotatable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column, tool holders mounted on the head, and means for rotating the tool head and bringing the tool holders successively into line with the chuck.

13. A metal working machine comprising a frame, a work chuck rotatably mounted on the frame, means for rotating the chuck, a vertically movable non-rotatable column supported and guided near each end by bearings in the frame, means for reciprocating the column, a tool head rotatably mounted upon and movable up and down with the column, tool holders mounted on the head, means for rotating the tool'head and bringing said tool holders successively into line With the chuck, tool holders rotatably mounted on the frame, and means for rotating said lattertool holders toward- Work held by the, chuck.

14. A metal Working machine comprising a frame, a Work chuck rotatably mounted on the frame, means for rotating the chuck, a vertically movable non-rotatable column supported and, guided near each end by:

means for rotating said latter tool holder-V toward the axis of the chuck, v

15. A metal Working mach ne comprising a frame, a vertically movable non-rotatable column supported and guided near each end by hearings in the frame, means for recip rocating the column, a tool head rotatably mounted upon and movable up and down With the column, means for rotating the tool head, toolholders mounted on the tool head, a table removably attached to the front of the frame, a chuck rotatablymounted on the table, tool holders, rotata-- bly mounted on the table, means. for r0- tating the chuck, and means for rotating the latter tool holders.

16. A metal- Working'machine comprising a frame having means, for supporting Work, a vertically movable tool head, reciprocatory means upon which said head is 1'0- tatably mounted, said means being non-rotatable and supported and guided bybearings in the frame each side of the tool head,

mechanism for reciprocating said means, and mechanism for rotating the tool head,

17. A metal Working machine comprising a frame having means for supporting Work,-

a vertically movable tool head, reciprocatory means upon which said head is retatabl-y mounted, said means being supported and guided by bearings in the frame each side of thetool head, mechanismforreciprocating' said means, and mechanism for rotating the tool head. p

18 A metal Working machinecomprising a frame havingmeans, for supporting'work,

a rotatable and vertically movable tool-head, said tool head being supported and guided in its vertical movement by bearings in the frame on each side of the head, and mechanism for causing the rotation and reciprocation of the tool head.

FRANK eREINER. 

